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29 March 2024
 
  » arxiv » hep-ex/0702023

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Production and Detection of Axion-Like Particles in a HERA Dipole Magnet - Letter-of-Intent for the ALPS experiment -
Klaus Ehret ; Maik Frede ; Ernst-Axel Knabbe ; Dietmar Kracht ; Axel Lindner ; Niels Meyer ; Dieter Notz ; Andreas Ringwald ; Guenter Wiedemann ;
Date 13 Feb 2007
AbstractRecently, the PVLAS collaboration has reported evidence for an anomalous rotation of the polarization of light in vacuum in the presence of a transverse magnetic field. This may be explained through the production of a new light spin-zero (axion-like) neutral particle coupled to two photons. In this letter-of-intent, we propose to test this hypothesis by setting up a photon regeneration experiment which exploits the photon beam of a high-power infrared laser, sent along the transverse magnetic field of a superconducting HERA dipole magnet. The proposed ALPS (Axion-Like Particle Search) experiment offers a window of opportunity for a rapid firm establishment or exclusion of the axion-like particle interpretation of the anomaly published by PVALS. It will also allow for the measurement of mass, parity, and coupling strength of this particle. [The experiment has been approved by the DESY directorate on January 11, 2007.]
Source arXiv, hep-ex/0702023
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